LS1 LS3 LS6 FKM VALVE SEALS .313 X 500 METAL CLAD 4.8 5.3 5.7 6.0 For GM TOP HAT

FKM Valve Seals for GM

These LS1 LS3 LS6 FKM valve seals in a .313 x 500 metal clad design are a direct replacement for GM 4.8, 5.3, 5.7, and 6.0 liter engines, providing a reliable seal to control oil consumption and maintain compression.

Overview

These metal clad FKM valve seals are engineered for LS-series engines, offering a robust barrier against oil leakage past the valve guides. The .313 x 500 size is a common fitment for GM LS engines, making them a solid choice for rebuilds or performance upgrades. These LS1 LS3 LS6 FKM valve seals are built for both stock and modified applications.

Built For Performance

• FKM material provides excellent resistance to heat and oil degradation
• Metal clad outer shell ensures a secure press-fit installation
• 'Top Hat' design enhances oil control at high RPM
• Direct replacement sizing for 4.8, 5.3, 5.7, and 6.0 liter engines

Fits These Machines

• for GM 4.8L Vortec
• for GM 5.3L Vortec
• for GM 5.7L LS1
• for GM 6.0L LS2/LQ4

On-The-Job Use

• Engine rebuilding
• Cylinder head overhaul
• Performance engine assembly

Specs At A Glance

Good To Know

Q: What is the benefit of FKM valve seals? A: FKM offers superior resistance to high temperatures and harsh engine oils, ensuring a longer service life compared to standard rubber seals.

Q: Are these seals specific to a certain valve size? A: The .313 x 500 dimension is a common size for many LS series valves, but always confirm with your specific valve stem diameter before installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.